T-Mobile is no stranger to holiday related sales and it looks like we will soon be seeing one more kicking off. This latest is a “Zero Down Sale” and will begin this coming Friday, which for those without a calendar handy — is December 21. The sale will then run through December 31. Simply put, you have some time to shop.

As for what T-Mobile is offering, zero down sales on select smartphones and tablets. These offers are available for customers choosing either an Unlimited Value or Unlimited Nationwide 4G Data plan. Included in the sale is the Galaxy Tab 2 10.1 tablet along with the HTC One S, Galaxy S Relay 4G, Samsung Galaxy S3 (16GB), Galaxy Note II and Nexus 4 smartphones.

All of these devices, with the exception of the Galaxy Tab 2 10.1 and the Galaxy Note II will be free after a mail-in rebate. The Tab 2 10.1 and Note 2, despite being part of a “Zero Down Sale” will each set you back $99.99. Of course, that still means an upfront savings of $100 for the Tab 2 10.1 and $200 for the Note II.

Otherwise, all of these devices (with one exception) will then have an EIP monthly payment of $20. That one exception is the Galaxy Tab 2 10.1 which will have a monthly payment of $15. Bottom line here, if you are in the market for a new device from T-Mobile — this looks like as good a time as any to make a purchase. Of course, we have to wonder about any sale that includes the Nexus 4 — a device that is currently listed as out of stock with both T-Mobile and Google.